1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * linux/mii.h: definitions for MII-compatible transceivers
4 * Originally drivers/net/sunhme.h.
5 *
6 * Copyright (C) 1996, 1999, 2001 David S. Miller (davem@redhat.com)
7 */
8
9#ifndef __LINUX_MII_H__
10#define __LINUX_MII_H__
11
12#include <linux/types.h>
13#include <linux/ethtool.h>
14
15/* Generic MII registers. */
16#define MII_BMCR 0x00 /* Basic mode control register */
17#define MII_BMSR 0x01 /* Basic mode status register */
18#define MII_PHYSID1 0x02 /* PHYS ID 1 */
19#define MII_PHYSID2 0x03 /* PHYS ID 2 */
20#define MII_ADVERTISE 0x04 /* Advertisement control reg */
21#define MII_LPA 0x05 /* Link partner ability reg */
22#define MII_EXPANSION 0x06 /* Expansion register */
23#define MII_CTRL1000 0x09 /* 1000BASE-T control */
24#define MII_STAT1000 0x0a /* 1000BASE-T status */
25#define MII_MMD_CTRL 0x0d /* MMD Access Control Register */
26#define MII_MMD_DATA 0x0e /* MMD Access Data Register */
27#define MII_ESTATUS 0x0f /* Extended Status */
28#define MII_DCOUNTER 0x12 /* Disconnect counter */
29#define MII_FCSCOUNTER 0x13 /* False carrier counter */
30#define MII_NWAYTEST 0x14 /* N-way auto-neg test reg */
31#define MII_RERRCOUNTER 0x15 /* Receive error counter */
32#define MII_SREVISION 0x16 /* Silicon revision */
33#define MII_RESV1 0x17 /* Reserved... */
34#define MII_LBRERROR 0x18 /* Lpback, rx, bypass error */
35#define MII_PHYADDR 0x19 /* PHY address */
36#define MII_RESV2 0x1a /* Reserved... */
37#define MII_TPISTATUS 0x1b /* TPI status for 10mbps */
38#define MII_NCONFIG 0x1c /* Network interface config */
39
40/* Basic mode control register. */
41#define BMCR_RESV 0x003f /* Unused... */
42#define BMCR_SPEED1000 0x0040 /* MSB of Speed (1000) */
43#define BMCR_CTST 0x0080 /* Collision test */
44#define BMCR_FULLDPLX 0x0100 /* Full duplex */
45#define BMCR_ANRESTART 0x0200 /* Auto negotiation restart */
46#define BMCR_ISOLATE 0x0400 /* Isolate data paths from MII */
47#define BMCR_PDOWN 0x0800 /* Enable low power state */
48#define BMCR_ANENABLE 0x1000 /* Enable auto negotiation */
49#define BMCR_SPEED100 0x2000 /* Select 100Mbps */
50#define BMCR_LOOPBACK 0x4000 /* TXD loopback bits */
51#define BMCR_RESET 0x8000 /* Reset to default state */
52#define BMCR_SPEED10 0x0000 /* Select 10Mbps */
53
54/* Basic mode status register. */
55#define BMSR_ERCAP 0x0001 /* Ext-reg capability */
56#define BMSR_JCD 0x0002 /* Jabber detected */
57#define BMSR_LSTATUS 0x0004 /* Link status */
58#define BMSR_ANEGCAPABLE 0x0008 /* Able to do auto-negotiation */
59#define BMSR_RFAULT 0x0010 /* Remote fault detected */
60#define BMSR_ANEGCOMPLETE 0x0020 /* Auto-negotiation complete */
61#define BMSR_RESV 0x00c0 /* Unused... */
62#define BMSR_ESTATEN 0x0100 /* Extended Status in R15 */
63#define BMSR_100HALF2 0x0200 /* Can do 100BASE-T2 HDX */
64#define BMSR_100FULL2 0x0400 /* Can do 100BASE-T2 FDX */
65#define BMSR_10HALF 0x0800 /* Can do 10mbps, half-duplex */
66#define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */
67#define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */
68#define BMSR_100FULL 0x4000 /* Can do 100mbps, full-duplex */
69#define BMSR_100BASE4 0x8000 /* Can do 100mbps, 4k packets */
70
71/* Advertisement control register. */
72#define ADVERTISE_SLCT 0x001f /* Selector bits */
73#define ADVERTISE_CSMA 0x0001 /* Only selector supported */
74#define ADVERTISE_10HALF 0x0020 /* Try for 10mbps half-duplex */
75#define ADVERTISE_1000XFULL 0x0020 /* Try for 1000BASE-X full-duplex */
76#define ADVERTISE_10FULL 0x0040 /* Try for 10mbps full-duplex */
77#define ADVERTISE_1000XHALF 0x0040 /* Try for 1000BASE-X half-duplex */
78#define ADVERTISE_100HALF 0x0080 /* Try for 100mbps half-duplex */
79#define ADVERTISE_1000XPAUSE 0x0080 /* Try for 1000BASE-X pause */
80#define ADVERTISE_100FULL 0x0100 /* Try for 100mbps full-duplex */
81#define ADVERTISE_1000XPSE_ASYM 0x0100 /* Try for 1000BASE-X asym pause */
82#define ADVERTISE_100BASE4 0x0200 /* Try for 100mbps 4k packets */
83#define ADVERTISE_PAUSE_CAP 0x0400 /* Try for pause */
84#define ADVERTISE_PAUSE_ASYM 0x0800 /* Try for asymetric pause */
85#define ADVERTISE_XNP 0x1000 /* Extended Next Page */
86#define ADVERTISE_RESV ADVERTISE_XNP /* Used to be reserved */
87#define ADVERTISE_RFAULT 0x2000 /* Say we can detect faults */
88#define ADVERTISE_LPACK 0x4000 /* Ack link partners response */
89#define ADVERTISE_NPAGE 0x8000 /* Next page bit */
90
91#define ADVERTISE_FULL (ADVERTISE_100FULL | ADVERTISE_10FULL | \
92 ADVERTISE_CSMA)
93#define ADVERTISE_ALL (ADVERTISE_10HALF | ADVERTISE_10FULL | \
94 ADVERTISE_100HALF | ADVERTISE_100FULL)
95
96/* Link partner ability register. */
97#define LPA_SLCT 0x001f /* Same as advertise selector */
98#define LPA_10HALF 0x0020 /* Can do 10mbps half-duplex */
99#define LPA_1000XFULL 0x0020 /* Can do 1000BASE-X full-duplex */
100#define LPA_10FULL 0x0040 /* Can do 10mbps full-duplex */
101#define LPA_1000XHALF 0x0040 /* Can do 1000BASE-X half-duplex */
102#define LPA_100HALF 0x0080 /* Can do 100mbps half-duplex */
103#define LPA_1000XPAUSE 0x0080 /* Can do 1000BASE-X pause */
104#define LPA_100FULL 0x0100 /* Can do 100mbps full-duplex */
105#define LPA_1000XPAUSE_ASYM 0x0100 /* Can do 1000BASE-X pause asym*/
106#define LPA_100BASE4 0x0200 /* Can do 100mbps 4k packets */
107#define LPA_PAUSE_CAP 0x0400 /* Can pause */
108#define LPA_PAUSE_ASYM 0x0800 /* Can pause asymetrically */
109#define LPA_RESV 0x1000 /* Unused... */
110#define LPA_RFAULT 0x2000 /* Link partner faulted */
111#define LPA_LPACK 0x4000 /* Link partner acked us */
112#define LPA_NPAGE 0x8000 /* Next page bit */
113
114#define LPA_DUPLEX (LPA_10FULL | LPA_100FULL)
115#define LPA_100 (LPA_100FULL | LPA_100HALF | LPA_100BASE4)
116
117/* Expansion register for auto-negotiation. */
118#define EXPANSION_NWAY 0x0001 /* Can do N-way auto-nego */
119#define EXPANSION_LCWP 0x0002 /* Got new RX page code word */
120#define EXPANSION_ENABLENPAGE 0x0004 /* This enables npage words */
121#define EXPANSION_NPCAPABLE 0x0008 /* Link partner supports npage */
122#define EXPANSION_MFAULTS 0x0010 /* Multiple faults detected */
123#define EXPANSION_RESV 0xffe0 /* Unused... */
124
125#define ESTATUS_1000_XFULL 0x8000 /* Can do 1000BaseX Full */
126#define ESTATUS_1000_XHALF 0x4000 /* Can do 1000BaseX Half */
127#define ESTATUS_1000_TFULL 0x2000 /* Can do 1000BT Full */
128#define ESTATUS_1000_THALF 0x1000 /* Can do 1000BT Half */
129
130/* N-way test register. */
131#define NWAYTEST_RESV1 0x00ff /* Unused... */
132#define NWAYTEST_LOOPBACK 0x0100 /* Enable loopback for N-way */
133#define NWAYTEST_RESV2 0xfe00 /* Unused... */
134
135/* MAC and PHY tx_config_Reg[15:0] for SGMII in-band auto-negotiation.*/
136#define ADVERTISE_SGMII 0x0001 /* MAC can do SGMII */
137#define LPA_SGMII 0x0001 /* PHY can do SGMII */
138#define LPA_SGMII_SPD_MASK 0x0c00 /* SGMII speed mask */
139#define LPA_SGMII_FULL_DUPLEX 0x1000 /* SGMII full duplex */
140#define LPA_SGMII_DPX_SPD_MASK 0x1C00 /* SGMII duplex and speed bits */
141#define LPA_SGMII_10 0x0000 /* 10Mbps */
142#define LPA_SGMII_10HALF 0x0000 /* Can do 10mbps half-duplex */
143#define LPA_SGMII_10FULL 0x1000 /* Can do 10mbps full-duplex */
144#define LPA_SGMII_100 0x0400 /* 100Mbps */
145#define LPA_SGMII_100HALF 0x0400 /* Can do 100mbps half-duplex */
146#define LPA_SGMII_100FULL 0x1400 /* Can do 100mbps full-duplex */
147#define LPA_SGMII_1000 0x0800 /* 1000Mbps */
148#define LPA_SGMII_1000HALF 0x0800 /* Can do 1000mbps half-duplex */
149#define LPA_SGMII_1000FULL 0x1800 /* Can do 1000mbps full-duplex */
150#define LPA_SGMII_LINK 0x8000 /* PHY link with copper-side partner */
151
152/* 1000BASE-T Control register */
153#define ADVERTISE_1000FULL 0x0200 /* Advertise 1000BASE-T full duplex */
154#define ADVERTISE_1000HALF 0x0100 /* Advertise 1000BASE-T half duplex */
155#define CTL1000_PREFER_MASTER 0x0400 /* prefer to operate as master */
156#define CTL1000_AS_MASTER 0x0800
157#define CTL1000_ENABLE_MASTER 0x1000
158
159/* 1000BASE-T Status register */
160#define LPA_1000MSFAIL 0x8000 /* Master/Slave resolution failure */
161#define LPA_1000MSRES 0x4000 /* Master/Slave resolution status */
162#define LPA_1000LOCALRXOK 0x2000 /* Link partner local receiver status */
163#define LPA_1000REMRXOK 0x1000 /* Link partner remote receiver status */
164#define LPA_1000FULL 0x0800 /* Link partner 1000BASE-T full duplex */
165#define LPA_1000HALF 0x0400 /* Link partner 1000BASE-T half duplex */
166
167/* Flow control flags */
168#define FLOW_CTRL_TX 0x01
169#define FLOW_CTRL_RX 0x02
170
171/* MMD Access Control register fields */
172#define MII_MMD_CTRL_DEVAD_MASK 0x1f /* Mask MMD DEVAD*/
173#define MII_MMD_CTRL_ADDR 0x0000 /* Address */
174#define MII_MMD_CTRL_NOINCR 0x4000 /* no post increment */
175#define MII_MMD_CTRL_INCR_RDWT 0x8000 /* post increment on reads & writes */
176#define MII_MMD_CTRL_INCR_ON_WT 0xC000 /* post increment on writes only */
177
178/* This structure is used in all SIOCxMIIxxx ioctl calls */
179struct mii_ioctl_data {
180 __u16 phy_id;
181 __u16 reg_num;
182 __u16 val_in;
183 __u16 val_out;
184};
185
186#endif /* __LINUX_MII_H__ */